Selecting the text from a C# listview

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C#

forms

ListView

Hi,
I need help in implementing this below:

I have a list view containing students courseworks, one column holding the barcode IDs, one column holding subject code, one holding the coursework title and one holding the due dates.
I want to have a button click event where by it checks the selected row (NB: i activated full row select), and then takes in the separate strings in each column on that specific row for some other purposes on the program.
Would appreciate a fast and easy way please, thanks